Means for holding reenforcing fabrication of concrete floors and slabs



Aug. 34;, 1923'.

C. H. SNYDER MEANS FOR HOLDING REENFORCING FABRICATION OF CONCRETE FLOORS AND SLABS Filed Oct. 5, 1920 2 Sheets-Sheet 2 IN VENOR c. X415 8 WITNESS W 1564 A TTORNE YS 2 She et l INVENTOR .U/X

Q4 ATTORNEYS Aug. 14, 1923.

. C. H. SNYEJEiR MEANS FOR HOLDING REENFOBCING FABRICATION OF CONCRETE FLCORS AND SLABS Filed 0m. 5, 1920 llilllr g W I inure stars earners QFFWE,

Patented Aug. 14, 1923.

' CHRISTOPHER HENRY SNYDER, F BERKELEY, CALIFORNIA.

MEANS FOR HOLDING REENFORCING FABRICATION or concerns rrioons AnnsLABs. 7

Application filed October 5, 1920. Serial No. 414,908.

.To all whom it may concern Be it known that I, CHRISTOPHER HENRY SNYDER, a citizen of the United States, and a resident of Berkeley, county of Alameda, andState of California, have invented a new and useful Means for Holding Reenir forcing Fabrication of Concrete Floors and 10" struction, and particularly to a method and ,means for facilitating the emplacement of Slabs, of which the following is a specification V This inventionrelates. to concrete conthe reenforcing rods and fabrication;

,Among thevarious systems for the erection of reenforcing fabrication for concrete structures, a common and popular form of such fabrication is well known as i the Continuity mat system, in which a mat-like fabrication of reenforcing rods is arranged over the] bottom surface of a mould, the ordinary practice being to place shoes or blocks in detached relation to and upon the bottom surface of the mould, or

form, at predetermined positions with re spect to a slab or floor element, and to looselyplace upon the tops of these blocks,

shoes or chairs parallel and right angularly" disposed reenforcing rods to 'forni'a rectangular bed frame wired at the superposed,

and overlapping portions together on the tops of the chairs. allel and right angular reenforcing rods are arranged upon the rectangular frame thus formed, the several rods being tied or clipped together by suitable means at their crossing points. This forms a fabrication" of'which the elements while secured to each other, are not secured to the relatively loose blocks, shoes or chairs.

It is an object of the present positively connecting the given elements of i the fabrication to their supporting chairs,

It is further object to" provide a' method and means at once simple, substan-' tial, practicable, involving the desired rigidity, and at the same time one that is i :highly economical in costof practice and in cost of the elements forming the supports.

It is also an object to provide'such a ,method andsystem with supporting means 'niately set up.

eiiforcing Thereafter other par tot supporting devices.

invention: to provide a novel method and system for that may be utilized readily in the support ng of reenforcingbars or; members of arious other systemsof fabrication, as well as particularly adaptedto the supporting of fabrication of the continuity inat system.

rinother object of the inventionisto provide a supporting and holding means capable of being manufactured at extremely low cost in quantity and capable of being compactly arranged or nested to facilitate from'the time of manufacture until ulti- The invention possesses other objects and matures of advantage, some ofwhich, with the foregoing, will be made manifest in the,

following description of the preferred form of the invention which is illustrated in the drawings accompanying and forming part of the specification. It is to be understood that it' s not intended to limit the invention.

.to the embodiment shown by the said'drawings and description, as" variations may be adopted within the scope of the invention asset forth in the claims.

In the drawings; 7

Figure l is a'perspective of a preferred. form of the supporting device, showing rebars applied and connected thereto.

Figure 2- 'is a perspectiveof the supporting device before the application thereto of the rods and before thebending of the retaining means.

Figure 3 is a diagrammatic elevational view illustrating the packing of a plurality iiigure 4 is a perspective of a somewhat modified form of the supportii'ig device, showing the reenforcing bars applied and connected thereto; and

Figure 5 is a perspective of the device of Fig. 4: before the attachmentof: the reenforcing [bars and before the bending of the connecting means.

I Figure 6 is a pcrspectiveof the lower portion of one of the devices with the foot forming flanges provided with tacks.-

Since the method now commonly in practice of erecting concrete reenforcing fabrication of the continuity mat system is Well known, the same istnot described in detail herein, and only a portion of the reenforcing elements are shown here, this being sufficient to indicate the utility of the present method and system. The device of the pres- "and maintain low cost of transportation from sheet'material, or from angle iron ma- ;terial, and, therefore, presents right angular,

cut invention, which will hereinafter be referred to as the supporting clip comprises a substantial chair, or standard-forming portion, most economically made of sheet material cut to predetermined shape and folded or bent to give rigidity and security and afford a desirable area and form of base. The upper end of the supporting clip is provided with seat-forming shoulders and with contiguous and preferably integrally formed bendable tongues to be folded over reenforcing bars when applied to the supporting shoulders. The invention may be embodied in a plurality of forms of supporting standards and clips, as, for instance, the standards may have an angular cross-section, or a semi-circular cross-section, or may be of channel iron, or of various other shapes possessing the desired transverse rigidity, and which, at the same time, will permit of a compact packing or nesting of the supporting clips for obvious reasons.

One form of the supporting clip is illustrated in Figs. 1, 2 and in which the standard portion of the clip is punched or cut integrally connected flanges 22 of any suitable dimensions that may be desired, according to the work in hand, the lower ends of the flanges 2-2 being shown as provided with outwardly turned foot-forming portions 7 3- 3 to give stability to the standards. The

upper ends of the flanges 2-2 are provided with tongues 4t and 5, one for each flange,

these tongues being materially narrower than the width of their flanges and spaced mediately between the longitudinal edges of the flanges and the intersecting angle 6 thereof.

It is desirable to provide a substantial support in the form of shoulders, or seats, upon which may be supported in superposed relation mat-formingreenforcing bars A and B, which are shown as disposed at right angles to each other in Fig. 1. per ends of the flanges 2-2, forming t standard, are formed with shoulders to receive the respective bars AB, these shoulders being disposed substantially as follows: One of the flanges 2 is provided with a notch 7 extending inwardly and above this notch the flange is cut away on a transverse line 8, forming a seat, or shoulder, terminating at the intersection of the side line 1 of the tongue 4, and the other flange 2 is provided adjacent the angle 6 with a transversely extending shoulder, or seat-forming edge 9, in

Jthe same line or plane as the seat 8, so that sis when the mechanic on the job turns the wing 10 from the position shown in Fig. 2 to the position shown in Fig. 1, the seats 8 and 9 become parallel to each other in the same plane'and the reenforcing bar A may thenbe laid in position across these seats, being Therefore, the up of the bar A. and its end is folded on the line 4 inwardly under the bar, thus forming a substantial hook over-hanging the interposed bar A and clinching it to its seats 8-9.

This operation performed, the mechanic may then apply the upper reenforcingrod B to respective seats, one of which is formed by the top edge 12 of a bendable wing 13 on one of the flanges 2, and which is relative to the tongue The bendable wing 13 may have been bent'in on the job at the time of the in folding of the wing 10, and therefore would be ready to receive the applied bar 13; which will rest above the bar A, the top'of which is in the plane of the seat12 adjacent the tongue 5, and also will bear upon a seat or transverse shoulder 14 contiguous to'the tongue 1 and extending inwardly therefrom. toward the line of the angle '6. The upper reenforcing bar 13, having been applied, the tongue 5'is folded along th line 5Tover the top of the bar B and thenis again folded along the line a down the inside face ofthe bar B, thus forming a substantial clip clinching the bar 11 to its seats 12-51%, which extend in pa'allelism and transversely beneath the bar.

Preferably, the wings 10 13 are left re maining in the planes of their respective flanges 2-2 at the time of manufacture of the devices, so as to enable the compact packing of the devices closely in and upon one another in a nested position, such as shown in Fig. 3, for the conservation cf space in storage and in transportation; it being but a simple matter for laborer on the job where the devices are to be erected, to apply a suitable tool to the wings to bend them from the .with a bar supporting shoulder, as 14",

which is produced by cutting a re-entrant notch 15 inwardly in the flange from the angle 6, the other flange2 being provided with an elongated slot 16, forming a tongue 17, disposedbetween the bottom edge 18 of the slot 16 and the outer edge oftheflange. The flange 2, in which the notch 15 is formed, is extended upwardly substantially full width, while the tongue 17 is less than the width of its flange 2 by an amount equal to the slot 16.. A 'reenfojrcing; bar A maybe inserted in the notch 15 and will rest upon the transverse shoulder, or seat 1 1, after whichthe tongue 17 is folded along a line 17 over the top of the bar and then is again folded on the line 17* down over the inner face of the bar, and finally folded along the line 17 in under the bar.

The upper bar B may then be placed transversely across the lower bar B, which forms a support therefor, and the upper end of the flange 2 above the notch 15 may be folded along the line 18 over the top of the bar B and again folded along the line 19 down over the inner face of the bar B. It

is obvious that the foot-forming flanges 3 at the lower end of the support may be folded outwardly as in Fig. 1, or may be folded inwardly as in Fig. 5.

The foot flanges 3 may have punched therein tack-like prongs or points T. The tack-like points "are preferably arranged with their planes parallel so as to be readily driven into the wood form or box.

What is claimed is 1. A chair for supporting re-enforcing rods, comprising a standard having angularly folded, longitudinal flanges and being slotted inwardly from one end along the hip of the fold, the bottom of the slot forming transverse seats, at right angles to each other, for rods; the separated ends of the flanges constituting wrapping means to be folded around an applied rod.

2. A chair for supporting re-enforcing rods, comprising a standard having angularly folded, longitudinal flanges and being slotted inwardly from one end along the hip of the fold, the bottom of the slot forming transverse seats, at right angles to each other, for rods; the separated end of the flanges constituting wrapping means to be folded around an applied rod, the rod seats being longitudinally oflset.

3. A chair for supporting re-enforcing rods, comprising a standard having angularly folded, longitudinal flanges and being slotted inwardly from one end along the hip of the fold, the bottom of the slot forming transverse seats, at right angles to each other, for rods; the separated ends of the flanges constituting Wrapping means to be folded around an applied rod, and the flanges having the edges rebated to form transverse shoulders and notched to form wings adapted to be folded in across an applied rod.

4. A chair for supporting re-enforcing rods, comprising a plate bent along a longitudinal line to form vertical angular flanges,

the chair being slotted inwardly along the hip from its upper end to form transverse bottom edges, one in each flange, which constitute seats for rods. 7

5. A- chair for supporting re-enforcing rods, comprising a plate bent along a longitudinal line to form vertical angular flanges, the chair being slotted inwardly along the angle hip from its upper end to form transverse bottom edges which constitute seats for rods which are movable inwardly through the mouth of the slot, the whole flanges above the seats constituting tongues bendable over inserted rods,

6. A chair for supporting re-enforcing rods, comprising a plate bent along a longitudinal line to form vertical angular flanges, the chair being slotted inwardly along the angle hip from its upper end to form transverse bottom edges which constitute seats for rods which are movable inwardly through the mouth of the slot, the upper corner edges of the flanges having wings foldable around to form rod seats.

7. A chair for supporting re-enforcing rods, comprising an angle-iron standard having a slot extending along the angle hip of the standard and extending laterally into each flange but terminating at different points in each so as to form rod seats for rods in superposed relations and crossing each other.

In testimony whereof, I have hereunto set my hand. 7 Y

CHRISTOPHER HENRY SNYDER. 

